Final answer:
The measure of each angle in a regular hexagon is 120 degrees.
Step-by-step explanation:
A regular hexagon has six equal sides and six equal angles. To find the measure of each angle in a regular hexagon, we can use the formula:
Angle measure = 180 * (n-2) / n
where n is the number of sides of the polygon. Substituting n = 6, we get:
Angle measure = 180 * (6-2) / 6 = 180 * 4 / 6 = 120 degrees
So, each angle in a regular hexagon measures 120 degrees. Therefore, the given angle measure for hexagon ABCDEF is 120 degrees.